CN104746184A - Sheet manufacturing apparatus and sheet manufacturing method - Google Patents
Sheet manufacturing apparatus and sheet manufacturing method Download PDFInfo
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- CN104746184A CN104746184A CN201410833924.XA CN201410833924A CN104746184A CN 104746184 A CN104746184 A CN 104746184A CN 201410833924 A CN201410833924 A CN 201410833924A CN 104746184 A CN104746184 A CN 104746184A
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- transfer passage
- producing device
- light
- sheet producing
- bend
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G23/00—Feeding fibres to machines; Conveying fibres between machines
- D01G23/06—Arrangements in which a machine or apparatus is regulated in response to changes in the volume or weight of fibres fed, e.g. piano motions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/736—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged characterised by the apparatus for arranging fibres
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Controlling Sheets Or Webs (AREA)
- Nonwoven Fabrics (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention relates to a sheet manufacturing apparatus and a sheet manufacturing method, and provides a sheet manufacturing apparatus which can manage the conveying capacity of sheet materials. The sheet manufacturing apparatus includes a transfer path through which flows at least a portion of a material for a sheet in air and which has a curved section where the transfer path is curved, and a forming unit configured to form the sheet using the material, and an optical detecting unit configured to detect the material and provided at the curved section or at the transfer path more to a downstream side than the curved section in a material transfer direction.
Description
Technical field
The present invention relates to a kind of sheet producing device and method of producing sheet.
Background technology
All the time, known a kind of paper regenerating unit, it has pulverizes paper and separates fine dry type solution fibre portion, first delivery section of carrying the fine thing of solution after separating fibre by dry type solution fibre portion, carries out air current classifying and make the classification portion of its deinking, to second delivery section of being carried by the fine thing of the solution after the deinking of classification portion and the paper forming section (for example, referring to patent document 1) making paper be shaped by the solution fibre thing by the second delivery section conveying to the fine thing of the solution of being carried by the first delivery section.
In above-mentioned device, in order to manufacture the uniform thin slice of thickness, need the amount of fine for the solution be transferred thing to be set to fixing.But because the fine thing of the solution in said apparatus is threadiness, very gently, it is comparatively difficult for therefore measuring the conveying weight of separating fine thing.Therefore, cannot manage the conveying weight of the fine thing of input solution, thus exist such as, the problem of the uniform thin slice of thickness can not be manufactured.
Patent document 1: Japanese Unexamined Patent Publication 2012-144819 publication
Summary of the invention
The present invention, in order to solve completing at least partially of above-mentioned problem, can realize as following mode or application examples.
The feature of sheet producing device involved in the present invention is to possess: transfer passage, and it makes flowing through in atmosphere at least partially of the material of thin slice; Forming section, it uses described material that described thin slice is shaped, in described sheet producing device, described transfer passage has the bend bent by described transfer passage, on described bend or on the throughput direction of described material compared with described bend downstream transfer passage on, possess the optical detector that described material is detected.。
According to this structure, transfer passage has bend, on the bends or on the throughput direction of material compared with bend downstream transfer passage on, be provided with the optical detector that described material is detected.This transfer passage passes through such as air-flow or gravity thus carries material in atmosphere.The material carried on the throughput direction of bend or material, compared with bend downstream transfer passage in, be transferred in the mode being partial to transfer passage one side side by centrifugal force.Therefore, can easily be detected state with presence or absence of material by fluorescence detector.And, such as, can easily manage the conveying weight of material according to this detection.
The feature of the sheet producing device involved by foregoing invention is, the light transmission supplying to send from described optical detector at least partially of described transfer passage.
According to this structure, due to the light transmission transfer passage that optical detector sends, therefore, it is possible to detect state with presence or absence of material exactly.
The feature of the sheet producing device involved by foregoing invention is to possess: separate fine portion, its to described material to carry out solution at least partially fine; Accumulation portion, it makes described material stacking, and described transfer passage is positioned at compared with the fine portion of described solution by the downstream of described throughput direction and by the position of the upstream of described throughput direction compared with described accumulation portion.
According to this structure, owing to comprising through separating the fibrous material in fine portion and the additive that was inserted into before accumulation portion at interior material gentlier and be easily subject to the impact of centrifugal force, therefore, it is possible to more effectively detect state with presence or absence of these materials.
The feature of the sheet producing device involved by foregoing invention is, described transfer passage has line part in the both sides of described bend, and the open angle of described line part is more than 45 degree less than 150 degree.
According to this structure, material can be made easily to be partial to transfer passage side by centrifugal force.
The feature of method of producing sheet involved in the present invention is, in the transfer passage with bend, make flowing through at least partially of the material of thin slice, by be configured on described bend or on the throughput direction of described material compared with described bend downstream transfer passage on optical detector described material is detected.
According to this structure, transfer passage has bend, on transfer passage on the throughput direction of bend or material, downstream compared with bend, be provided with optical detector.The material be transferred in this transfer passage, in bend or on the throughput direction of material compared with bend downstream transfer passage in, be transferred in the mode being partial to transfer passage one side side by centrifugal force.Therefore, it is possible to easily detected state with presence or absence of material by fluorescence detector.And, such as, by carrying out computing according to this detection to the weight etc. of the material flowing through transfer passage, thus can easily manage the conveying capacity of material.
But, when using optical detector to measure, produce following problem sometimes, namely, owing to separating the attachment etc. of fine thing etc. in the use of device or transfer passage, thus cause the accuracy of detection of optical detector to reduce, and produce the problem of the error of the conveying weight of separating fine thing.In order to solve this problem at least partially, can realize as following mode or application examples.
The feature of sheet producing device involved in the present invention is, possess: make flowing through in atmosphere at least partially and possess and making the transfer passage of the through portion of light transmission and use described material forming section that described thin slice is shaped of the material of thin slice, described sheet producing device possesses: optical detector its there is illuminating part facing to described through portion luminescence; Light accepting part, it accepts the light through described through portion, described sheet producing device has control part, described control part described light accepting part accept wide in predetermined threshold value time, be judged as that described material does not flow through, when the accumulative service time of described sheet producing device is longer, described threshold value is less.
On transfer passage, the material of thin slice is carried by the use of sheet producing device.Now, a part for the material be transferred is attached to the through portion of transfer passage.Now, the service time of sheet producing device is longer, and the amount that the part of material is attached to the through portion of transfer passage will become more.So, the light income accepting the light accepting part of the light that illuminating part sends in optical detector will tail off.On the other hand, the threshold value for judging the presence or absence of the material on transfer passage is prescribed according to the light income of light accepting part.That is, because threshold value is not corresponding with the variation of light income, when therefore causing the light income of light accepting part to reduce in the attachment due to material etc., even if when material does not flow through transfer passage, also can be judged as that material flows through transfer passage.Therefore, according to said structure, be set to, when the accumulative service time of sheet producing device is longer, threshold value becomes less.That is, suitably threshold value can be adjusted by the accumulative service time of chip device.Thereby, it is possible to suitably keep the accuracy of detection of optical detector, and reduce the metrical error of the conveying weight of separating fine thing.
The feature of the sheet producing device involved by foregoing invention is, described control part, when the light income of the described light accepting part of described sheet producing device when the state that described material does not flow through issues light is less, compared with time larger with this light income, reduces described threshold value.
According to this structure, by when the light income of sheet producing device when the state that described material does not flow through issues light is less, compared with time larger with this light income, reduce threshold value, thus transfer passage is not flow through to material but understanding for light income lower than threshold value and the situation that there is material suppress.
The feature of the sheet producing device involved by foregoing invention is, described control part reduces described threshold value when following, namely, the light income of the described light accepting part of described sheet producing device when the state that described material does not flow through issues light, the situation of light income when being less than the bringing into use of described sheet producing device.
According to this structure, due to when the bringing into use of sheet producing device, material is not attached in transfer passage, and therefore light income is larger.When using sheet producing device, material will be attached to the through portion of transfer passage thus light income is reduced.Therefore, by reducing threshold value when being less than the light income of light income when bringing into use, thus can material not flow through but be familiar with for light income lower than threshold value and the situation that there is material suppress.
The feature of method of producing sheet involved in the present invention is, thin slice is manufactured by following sheet producing device, described sheet producing device possesses: transfer passage, and it makes flowing through in atmosphere at least partially of the material of described thin slice, and has the through portion making light transmission; Forming section, it uses described material that described thin slice is shaped, optical detector, its have facing to described through portion luminescence illuminating part and accept through the light accepting part of the light of described through portion, in described method of producing sheet, described light accepting part accept wide in predetermined threshold value time, when being judged as that described material does not flow through, when making the accumulative service time of described sheet producing device longer, described threshold value becomes less accumulative.
On transfer passage, the material of thin slice is carried by the use of sheet producing device.Now, a part for the material be transferred is attached to the through portion of transfer passage.Now, the service time of sheet producing device is longer, and the amount that material is attached to the through portion of transfer passage will become more.So, the light income accepting the light accepting part of the light that illuminating part sends in optical detector will reduce.On the other hand, for being prescribed according to the light income of light accepting part the threshold value having stateless to judge of the material on transfer passage.That is, due to not corresponding with the variation of light income with threshold value, when therefore causing the light income of light accepting part to reduce in the attachment due to material etc., even if when material does not flow through transfer passage, also can be judged as that material flows through transfer passage.Therefore, according to said structure, be set to, when the accumulative service time of sheet producing device is longer, threshold value becomes less.That is, suitably threshold value can be adjusted by the accumulative service time of chip device.Thereby, it is possible to suitably keep the accuracy of detection of optical detector, and reduce the error-detecting of the conveying weight of separating fine thing.
Accompanying drawing explanation
Fig. 1 is the synoptic diagram of the structure representing sheet producing device.
Fig. 2 represents the structure chart of the structure of optical detector and periphery thereof.
Fig. 3 is the key diagram of the method for work representing sheet producing device.
Fig. 4 is the key diagram of the establishing method of the threshold value represented in optical detector.
Fig. 5 is for representing the structure chart of the structure of optical detector involved by Change Example and periphery thereof.
Detailed description of the invention
Below, with reference to accompanying drawing, embodiments of the present invention are described.In addition, owing to each parts to be set to the size of the degree that can identify in following figure, therefore to make each parts equidimension mode different from reality represent.
First, the structure of sheet producing device is described.Sheet producing device is such as the device based on the raw materials such as pure pulp thin slice or waste paper (by separating fine thing) Pu being formed as the technology of new thin slice Pr.Sheet producing device involved by present embodiment is, possess the transfer passage flow through at least partially that makes the material of thin slice and use material to the sheet producing device of the forming section making thin slice be shaped, wherein, transfer passage has the bend making transfer passage bending, on the throughput direction of material compared with bend downstream transfer passage on possess the optical detector that described material is detected.In addition, method of producing sheet involved by present embodiment is, what make the material of thin slice flows through the transfer passage with bend at least partially, and by be configured on the throughput direction of material compared with bend downstream transfer passage on optical detector method that material is detected.Below, the structure of sheet producing device is specifically described.
Fig. 1 is for representing the synoptic diagram of the structure of the sheet producing device involved by present embodiment.As shown in Figure 1, the sheet producing device 1 of present embodiment possesses: supply unit 10, coarse crushing portion 20, separate fine portion 30, classification portion 40, screening unit 50, additive throw-in part 60, accumulation portion 70, forming section 200, transfer passage 201,202,203, optical detector 300 etc.And, possess the control part that these parts are controlled.
Supply unit 10 is component waste paper Pu being supplied to coarse crushing portion 20.Supply unit 10 such as possesses the overlapping pallet 11 storing multiple waste paper Pu and the automatic delivering mechanism 12 etc. that the waste paper Pu in pallet 11 can be fed into continuously in coarse crushing portion 20.Supply to the waste paper Pu of sheet producing device 1, such as, it is the current paper etc. becoming the A4 size of main flow in an office.
Coarse crushing portion 20 is be the component of the square scraps of paper of several centimetres by the waste paper Pu severing be supplied to.In coarse crushing portion 20, possess coarse crushing blade 21, and form the device as the cut-out width of the blade of broadening common grater.Thereby, it is possible to easily the waste paper Pu be supplied to is cut into the scraps of paper.And the coarse crushing paper be disconnected is supplied to by transfer passage 201 separates fine portion 30.
Separating fine portion 30 is possess the rotation blade (not shown) carrying out rotating, and carries out being untied by the coarse crushing paper be supplied to from coarse crushing portion 20 as the fibrous component separating fibre.In addition, the solution fibre portion 30 of present embodiment is the component implementing dry type solution fibre in atmosphere.By separating the solution fibre process in fine portion 30, the coating materials etc. be coated on paper such as printed ink, toner, antiseepage profit material become the particle (hereinafter referred to as " ink grain ") of less than tens of μm and and fiber separation.Therefore, from separating the fine thing of the solution of discharging in fine portion 30 be, the fiber obtained by the solution fibre to the scraps of paper and ink grain.And separating fine portion 30 becomes the rotation by rotating blade and produce the mechanism of air-flow, and separate the fine fiber obtained and taken advantage of by transfer passage 202 this air-flow to be transported to classification portion 40 in atmosphere.In addition, as required, also the air flow-producing device that fine portion 30 be arranged separately and produce as downstream can separated, that is, for making the air-flow being delivered to classification portion 40 by the fiber separating fibre by transfer passage 202.
Classification portion 40 is the device by air-flow, the importing thing be imported into being carried out classification.In the present embodiment, ink grain and fiber is classified as using as the fine thing of the solution importing thing.Classification portion 40 such as, by application cyclone separator, thus can be classified as ink grain and deinked fiber (the fine thing of deinking solution) by being transferred the fibrous airstream come.In addition, the airflow classification device of other kinds also can be utilized to replace cyclone separator.In this case, as the airflow classification device beyond cyclone separator, such as, bend pipe Jet Classifier for Super or vortex classifier etc. can be used.Because airflow classification device produces swirling eddy, and by according to separating, size and the density of fine thing and the difference of centrifugal force that is subject to carry out being separated, classification, therefore, it is possible to by the speed of air-flow, the adjustment of centrifugal force, and classification point is regulated.Thus, the less and ink grain that density is lower is divided into and the large and fiber that density is higher compared with ink grain.The situation removing ink grain from fiber is called deinking.
The classification portion 40 of present embodiment is the cyclone separator of tangent line input mode, by from separating the introducing port 40a that fine portion 30 imports, the cylindrical portion 41 of installing introducing port 40a in tangential direction, with the bottom continuous print conus portion 42 of cylindrical portion 41, being arranged at the bottom conveying end 40b of the bottom of conus portion 42 and being arranged at the forming for the upper air vent 40c discharging fine powder of center upper portion of cylindrical portion 41.The diameter of conus portion 42 diminishes along with below trend vertical direction.
In classification process, the air-flow carrying the fine thing of the solution be imported into from the introducing port 40a in cyclone classified portion 40 becomes circular motion cylindrical portion 41, conus portion 42, thus has been applied in centrifugal force and has been graded.And large and density is higher fiber moves towards bottom conveying end 40b compared with ink grain, and the ink grain that less and density is lower is exported to upper air vent 40c with air as fine powder, thus carries out deinking.And the short fibre mixture comprising a large amount of ink grain is discharged from the upper air vent 40c of cyclone separator 40.And the short fibre mixture comprising the ink grain be discharged in a large number is recovered to acceptance division 80 via the transfer passage 206 be connected with the upper air vent 40c in classification portion 40.On the other hand, the classification thing comprising the fiber be graded via transfer passage 203 from the bottom conveying end 40b in classification portion 40 is carried by towards screening unit 50 in atmosphere.From classification portion 40 to screening unit 50, can be transferred by the air-flow when being graded, also can be transported to from the classification portion 40 being in top the screening unit 50 being in below by gravity.In addition, also can configure suction section etc. on the upper air vent 40c in classification portion 40 or transfer passage 206 etc., described suction section is used for effectively from upper air vent 40c, aspirating short fibre mixture.
Screening unit 50 for make the classification thing of the fiber after comprising the portion of being graded 40 classification from the screening drum 51 with multiple opening by thus carry out the device that screens.More specifically, for the fiber by comprising 40 classifications in classification portion classification thing screening for by opening by thing with not by the component of the residue of opening.In the screening unit 50 of present embodiment, possess by making the rotary motion of classification thing thus the mechanism making it disperse in atmosphere.And, be have passed by the screening of screening unit 50 opening by thing after being accepted by pars infundibularis 56, be transported to accumulation portion 70 via transfer passage 204.On the other hand, by the screening of screening unit 50 not by the residue of opening from discharge portion 57 via the transfer passage 205 as transfer passage, again separate fine portion 30 as being sent back to by the fine thing of solution.Thus, residue is used again when not going out of use (recycling).
Be have passed by the screening of screening unit 50 opening by thing, be transported to accumulation portion 70 in atmosphere via transfer passage 204.From screening unit 50 to accumulation portion 70, can be transferred by the air blast of not shown generation air-flow, also can be transported to from the screening unit 50 being in top the accumulation portion 70 being in below by gravity.Screening unit 50 in transfer passage 204 and between accumulation portion 70, is provided with the additive throw-in part 60 being added the additive of resin (such as, molten resin or heat-curing resin) etc. by thing for being transferred.In addition, as additive, except dropping into molten resin, such as fire retardant, whiteness improving agent, thin slice power reinforcing agent or cementing agent etc. can also be dropped into.These additives are stored in additive storing section 61, and are put into from input port 62 by not shown injection mechanism.
Accumulation portion 70 is, uses the material that comprises by thing and resin and makes it pile up thus form the component of tablet W, is describedly comprised the fiber be put into from transfer passage 204 by thing.Accumulation portion 70 has makes fiber be evenly dispersed in mechanism in air and by the mechanism of dispersed fiber accumulations on guipure 73.In addition, the tablet W involved by present embodiment refers to, comprises the construction form of the object of fiber and resin.Therefore, though when the heating of tablet, pressurization time, the time of cut-out or conveying time equidimension etc. form also represent as tablet when changing.
First, as making fiber be evenly dispersed in mechanism in air, be configured with assembly drum 71 in accumulation portion 70, the inside of assembly drum 71 is dropped into fiber and resin.And, carry out rotary actuation by making assembly drum 71 thus can in by thing (fiber) hybrid resin (additive) equably.Assembly drum 71 is provided with the screen pack with multiple aperture.And, by making assembly drum 71 rotary actuation, and resin (additive) is blended in equably by while in thing (fiber), fiber or the fiber that can make to have passed aperture are evenly dispersed in air with the object that mixes of resin.
The guipure 73 of annular of the mesh that is tensioned by idler roller 72, is formed is configured with in the below of assembly drum 71.And, carry out rotation by least one in idler roller 72, thus this guipure 73 is moved to a direction.
In addition, in the vertical below of assembly drum 71, guipure 73 is provided with aspirator 75, described aspirator 75 is as the suction section produced towards the air-flow of vertical below.By aspirator 75, the fiber be dispersed in air can be pumped on guipure 73.
And, have passed the fiber of the aperture screen pack of assembly drum 71 etc. and be stacked on guipure 73 by the suction force produced by aspirator 75.Now, by making guipure 73 move to a direction, thus can be formed and comprise fiber and resin and the tablet W being piled into strip.By implementing the movement of dispersion from assembly drum 71 and guipure 73 continuously, thus banded continuous print tablet W is formed.In addition, guipure 73 can be metal, and also can be resin-made, can also be nonwoven fabric, as long as can make fiber accumulations and make air-flow pass through, then can be arbitrary material.In addition, when the aperture of the mesh of guipure 73 is excessive, fiber will enter between mesh, thus it is concavo-convex to become when defining tablet (thin slice), on the other hand, when the aperture of mesh is too small, form being difficult to the stable air-flow produced by aspirator 75.Therefore, be preferably, suitably regulate the aperture of mesh.Aspirator 75 is formed in the following way, that is, formed in the below of guipure 73 and open the seal box of the window of required size, and makes to become negative pressure in case compared with extraneous air from withdrawing air beyond window.In addition, the tablet W involved by present embodiment refers to, comprises the construction form of the object of fiber and resin.Therefore, though when the heating of tablet, pressurization time, the time of cut-out or conveying time equidimension etc. form also represent as tablet when changing.
The tablet W be formed on guipure 73 is transferred by delivery section 100.The delivery section 100 of present embodiment refers to, from guipure 73 to final as thin slice Pr (tablet W) being put in accumulation device 160 during the course of conveying of tablet W.Therefore, except guipure 73, various rollers etc. as delivery section 100 a part and play function.As delivery section, as long as be at least one in conveyer belt or conveying roller etc.Specifically, first, be formed in as in rotary moving by guipure 73 of the tablet W on the guipure 73 of a part for delivery section 100, be transferred according to throughput direction (arrow mark in figure).Next, tablet W is transferred from guipure 73 according to throughput direction (arrow mark figure).In addition, in the present embodiment, accumulation portion 70 and delivery section 100 be, utilizes tablet W to a part for the forming section 200 making thin slice Pr and be shaped.
The throughput direction of tablet W is configured with pressurization part with the downstream of accumulation portion 70.In addition, the pressurization part of present embodiment is, has the pressurization part 140 to the roller 141 that tablet W pressurizes.By making tablet W pass through between roller 141 and idler roller 72, thus can pressurize to tablet W.Thereby, it is possible to improve the intensity of tablet W.
Downstream compared with pressurization part 140 on the throughput direction of tablet W, is configured with cutting portion preliminary roller 120.Cutting portion preliminary roller 120 has pair of rolls 121.In pair of rolls 121, a side is drived control roller, and the opposing party is driven voller.
In addition, the driving transfer part making cutting portion preliminary roller 120 rotate uses one-way clutch.One-way clutch is configured to, and has the clutch mechanism only transmitting revolving force on the direction of a side, relative to dallying in the other direction.Thus, when producing excess tension by roller after cutting portion 125 and the speed difference of cutting portion preliminary roller 120 to tablet W, owing to dallying in cutting portion preliminary roller 120 side, therefore, it is possible to suppression is to preventing tablet W to be pulled off to the tension force of tablet.
The downstream of the cutting portion preliminary roller 120 on the throughput direction of tablet W, the direction intersected with the throughput direction be transferred is configured with the cutting portion 110 cut off tablet W.Cutting portion 110 possesses cutter, and according to the off-position being set to predetermined length, the tablet W of sequential like is cut to individual paper-like (flake).Cutting portion 110 such as can apply rotary cutter.Thereby, it is possible to cut off while conveying tablet W.Therefore, owing to not stopping the conveying of tablet W when cutting off, efficiency is manufactured therefore, it is possible to improve.In addition, cutting portion 110, except rotary cutter, can also be suitable for various cutter.
Roller 125 after be configured with cutting portion by the downstream of the throughput direction of tablet W compared with cutting portion 110.After cutting portion, roller 125 has pair of rolls 126.In pair of rolls 126, a side is drived control roller, and the opposing party is driven voller.
In the present embodiment, tension force can be produced to tablet W by the speed difference of roller 125 after cutting portion preliminary roller 120 and cutting portion.And, be configured to, under the state that tension force is produced to tablet W, cutting portion 110 driven and tablet W is cut off.
Compared with roller after cutting portion 125 by the downstream of the throughput direction of tablet W be configured with form heat pressurization part 150 heat backer roll 151 a pair.This heating pressurization part 150 to be adhered the device of (fixing) each other for the fiber being made tablet W by resin and comprise.Being provided with the heater block of heater etc. in the portion of rotating shaft center of heating backer roll 151, by making tablet by between this pair heating backer roll 151, thus heating pressurization can being carried out to the tablet W be transferred.And, by utilizing a pair heating backer roll 151 to carry out heating pressurization to tablet W, thus make resin melting and be easy to be combined with fiber, and fibrous septum shortens and contact point increase between fiber.Thus, density increases thus the intensity as tablet W is improved.
In the downstream by the throughput direction of tablet W compared with heating pressurization part 150, the throughput direction along tablet W is configured with the rear cutting portion 130 cut off tablet W.Rear cutting portion 13 possesses cutter, and cuts off according to the predetermined off-position on the throughput direction of tablet W.Thus, the thin slice Pr (tablet W) of required size is made to be shaped.And cut-off thin slice Pr (tablet W) is loaded in accumulation device 160 grade.
In addition, the thin slice involved by above-mentioned embodiment mainly refers to, is formed as laminar material with the material comprising the fiber of waste paper or pure pulp etc. for raw material.But being not limited to this material, also can be tabular, netted (or the irregular shape of tool).In addition, as raw material, also can be the chemical fibres such as the strings such as cellulose, PET (polyethylene terephthalate), polyester, the animal fiber such as wool, silk.In this application, thin slice is divided into paper and nonwoven fabric.Paper bag is drawn together and is set to thinner laminar form etc., and comprises taking down notes or record-paper, wallpaper, wrapping paper, chromatics paper, kent etc. for the purpose of printing.Nonwoven fabric and paper is thicker and intensity is lower, comprises nonwoven fabric, fiberboard, napkin paper, paper for kitchen, cleaner, filter, liquid absorption material, acoustic(al)absorbent, padded coaming, mat etc.
In addition, although waste paper mainly refers to printed paper in above-mentioned present embodiment, if the material will be formed as paper is as raw material, then no matter whether uses and be all considered as waste paper.
Next, the optical detector of sheet producing device and the structure of periphery thereof are described.Fig. 2 represents the structure of optical detector and periphery thereof, and Fig. 2 (a) is lateral section, and Fig. 2 (b) is the A-A sectional view in Fig. 2 (a).At this, if transfer passage be positioned at solution fine portion 30 compared with by the downstream of throughput direction, compared with accumulation portion 70 by the upstream of throughput direction, be not particularly limited.In addition, in the present embodiment, be exemplarily described connecting the transfer passage 202 separating fine portion 30 and classification portion 40.
As shown in Fig. 2 (a), transfer passage 202 has the bend 210 (210a, 210b) making transfer passage 202 bending.In the present embodiment, as shown in Figure 2, in cross-section, transfer passage 202 has horizontal part 219a, 219b of being configured in horizontal direction at the upstream side of the throughput direction of material.And, horizontal part 219a, 219b are connected with bend 210a, 210b.And, there is in the downstream of the throughput direction of the material of bend 210a, 210b line part 211a, 211b of being connected to bend 210.Line part 211a, 211b are more than 45 degree less than 150 degree relative to the open angle θ of horizontal part 219a, 219b.In addition, the open angle θ of present embodiment is roughly set to 90 degree.By forming transfer passage 202 by this way, thus make the material be transferred from the upstream side of the throughput direction of the material of bend 210 by air-flow the transfer passage of downstream compared with bend 210, be partial to the side of transfer passage 202 by centrifugal force, a part or the line part 211a side of being namely partial to bend 210a are transferred.
On the throughput direction of material, the line part 211a position halfway after the bend 210 of transfer passage 202 is configured with optical detector 300.The optical detector 300 of present embodiment is, to the device having stateless to detect of material flowing through transfer passage 202.The allocation position of optical detector 300 is set to, within such as becoming 9 times of the internal diameter of transfer passage 202 from the connecting portion distance H played till the optical axis S of optical detector 300 of line part 211a and bend 210.When distance H is more than 9 times, the impact that there will be centrifugal force is diminished thus makes material not be partial to the situation of the side of transfer passage 202.Due to by being set within 9 times apart from H, thus can be detected by the position of deflection exactly, therefore accuracy of detection improves.Within distance H also can be set to 600mm.And in the present embodiment, optical detector 300 is configured in the position corresponding with line part 211a, 211b of transfer passage 202.
Optical detector 300 possesses the illuminating part 300a sending light and the light accepting part 300b accepting the light sent from illuminating part 300a.And the optical axis S-phase in illuminating part 300a and light accepting part 300b becomes vertical direction for line part 211a, 211b, and illuminating part 300a and light accepting part 300b is configured across transfer passage 202.Illuminating part 300a is such as, LED (Light Emitting Diode, Light-Emitting Diode) light-emitting component or lasing fluorescence element etc.Optical detector 300 is connected to control part, and according to preset program by drived control.In addition, in the present embodiment, illuminating part 300a is configured at line part 211a side, i.e. material and is partial to the side of conveying, although light accepting part 300b to be configured at the line part 211b side of opposition side, be not limited to this structure.Such as, also light accepting part 300b can be configured at line part 211a side, illuminating part 300a be configured at the line part 211b side of opposition side.
In addition, as transfer passage 202 at least partially, namely corresponding with the optical axis S-phase in light accepting part 300b with the illuminating part 300a of optical detector 300 part, it is configured in the mode of light transmission.Thus, by light accepting part 300b, the light that the illuminating part 300a that can accept optical detector 300 sends.In the present embodiment, a part of line part 211a, 211b of transfer passage 202 is configured with the light transparent member 220 with light transmission.In addition, as long as light transparent member 220 is at least arranged at illuminating part 300 and the optical axis S in light accepting part 300b, the circumferencial direction of transfer passage 202 can be configured on the whole, also can be configured in a part.
In addition, as shown in Fig. 2 (b), be configured with illuminating part 300a and light accepting part 300b to make the optical axis S in illuminating part 300a and light accepting part 300b by the mode of the inside of transfer passage 202.In addition, in the present embodiment, illuminating part 300a and light accepting part 300b is configured with in following position, the position of the part that the optical axis S namely in illuminating part 300a and light accepting part 300b is partial to due to centrifugal force through material F most.When being carried material F in transfer passage 202 by air-flow, when there is material F, in Fig. 2 (b), material F passes through the rightmost side of transfer passage 202 inside by centrifugal force.Due to the part that optical axis S is partial to through material F most, therefore as there is material F, then must detect, thus can precision well the stateless that has of material be detected.
Next, the method for work of Fig. 2 and Fig. 3 to sheet producing device is used to be described.Fig. 3 is the key diagram of the method for work representing sheet producing device.In addition, in the present embodiment, to by optical detector, the method having stateless to detect of the material carried in the transfer passage of sheet producing device is described in detail.
First, separate fine material F (separating fine thing) and be transported to classification portion 40 side by transfer passage 202 by separating fine portion 30 by the air-flow separated fine portion 30 and produce.And when being transported to classification portion 40 from the fine portion 30 of solution, material F is by horizontal part 219a, 219b of transfer passage 202.As shown in Fig. 2 (a), material F is now scattered in the entirety in transfer passage 202 and is transferred.
Next, material F is by bend 210a, 210b of transfer passage 202.Bend 210a, 210b are carry the part of material F from horizontal part 219a, 219b to line part 211a, 211b.The bend 210a side (outer circumferential side of bend 210) of material F now by centrifugal force near a side in bend 210.
Next, material F is by line part 211a, 211b of transfer passage 202.Material F is now transferred in such a way, is namely partial to the line part 211a side of a side by centrifugal force by the material of pneumatic convey.And, detected by the stateless that has of optical detector 300 to the material F be transferred in the mode being partial to line part 211a side.As detection method, produce light from the illuminating part 300a of optical detector 300, and accept sent light by light accepting part 300b.Now, material F passes through between illuminating part 300a and light accepting part 300b, thus makes the light of self-luminescent part 300a to be blocked by material F, and the light income accepted by light accepting part 300b will be reduced.That is, light is produced and the situation accepting the light income of the light accepting part 300b of light sent larger represents the state that material F is not transferred from illuminating part 300a.On the other hand, the light carrying out self-luminescent part 300a is blocked by material F and makes the situation of the light income minimizing accepted by light accepting part 300b represent the state that material F has been transferred.Thereby, it is possible to detect the stateless that has of material F.
Further specifically, as shown in Figure 3, the light income (analog signal) of the light accepting part 300b of the light accepting self-luminescent part 300a is obtained.According to acquired light income, generate and the situation of the threshold value St being greater than light income is set to OFF, the situation of the threshold value St being less than light income is set to the data signal of ON.And, generate the clock signal of predetermined period (such as, 10ms), and the number of times of the ON of data signal during rising to clock signal counts.And, the number of times of the ON of the data signal in the scheduled time (such as, 20Sec) is counted.By asking for the relational expression of the weight of number of times (count number) and the actual material be transferred be counted by this way, and according to count number, thus calculate the conveying weight of material F.Thereby, it is possible to the conveying weight of the material F be transferred is managed, and the conveying of fixed amount material can be implemented.And, such as, specifying the count number in the scheduled time, and when detected count number is less than the count number of regulation, the raw material warning that less input can be sent by display or alarm to staff.In addition, when detected count number is greater than the count number of regulation, warning excessive compared with setting is measured on the level ground that can send by separating fine thing Pu to staff etc.If count number is 0, then can detect and not drop into raw material.
And the material F be transferred in line part 211a, 211b is fed into classification portion 4 and is graded.Afterwards, thin slice Pr is manufactured via accumulation portion 70 and forming section 200 etc.
Next, the establishing method of the threshold value of optical detector is described.Fig. 4 is the key diagram of the establishing method of the threshold value representing optical detector.As mentioned above, although in the present embodiment, detected by the stateless that has of optical detector 300 to the material be transferred in the transfer passage 202 of sheet producing device 1, but the service time of sheet producing device 1 is longer, then a part for material the amount be attached on the permeation member 220 of transfer passage 202 will become more.So, in optical detector 300, the light income accepting the light accepting part 300b of the light that illuminating part 300a sends will reduce.On the other hand, there is following possibility, even if although that is, make light income change in attachment due to material etc., threshold value is constant, and when not flowing through transfer passage 202 with regard to this material, is also judged as that material flows through transfer passage 202.
Therefore, in the sheet producing device 1 of present embodiment, there is control part 2, described control part 2 light accepting part 300b accept wide in predetermined threshold value time, be judged as that material does not flow through, and become less mode when the accumulative service time of sheet producing device is longer with threshold value and set.That is, suitably threshold value can be adjusted by the accumulative service time of sheet producing device 1.Such as, when the light income of the light accepting part 300b of sheet producing device 1 when the state that material F does not flow through issues light is less, compared with time larger, reduce threshold value St.And, when light income when the light income of the light accepting part 300b of sheet producing device 1 when the state that material F does not flow through issues light is less than bringing into use of sheet producing device 1, reduce threshold value St.Below, the establishing method of the threshold value of concrete optical detector 300 is described.
First, as shown in Fig. 4 (a), under the original state of manufacturing installation 1, the light income that the light accepting part 300b of optical detector 300 accepts is measured.In this case original state is such as, and the permeation member 220 of transfer passage 202 is by the state of cleaning.And, in this initial situation, under the state that material F does not flow through transfer passage 202, drive optical detector 300.And, to sending light from illuminating part 300 and the light income Lv1 of the light sent accepted by light accepting part 300b is measured.And, be multiplied by predetermined number m (being less than the coefficient (such as 0.75) of 1.0) with the light income Lv1 measured thus calculate threshold value St1.And, use the threshold value St1 calculated to start to make the conveying (running of sheet producing device 1) of material F.
Next, such as, when reaching the stipulated time, the threshold value St1 of original state is reset to threshold value St2 accumulative service time of sheet producing device 1.Specifically, as shown in Fig. 4 (b), at the time point reaching the stipulated time accumulative service time of sheet producing device 1, the light income that the light accepting part 300b by optical detector 300 accepts is measured.Specifically, at the time point reaching the stipulated time accumulative service time of sheet producing device 1, under the state that material F does not flow through transfer passage 202, optical detector 300 is driven.And, to sending light from illuminating part 300 and the light income Lv2 of the light sent accepted by light accepting part 300b is measured.And, be multiplied by predetermined number m (being less than the coefficient of 1.0) with the light income Lv2 measured thus calculate threshold value St2.In addition, in the present embodiment, the predetermined number m used to calculate threshold value St1 and threshold value St2 is identical value.And, use the new threshold value St2 calculated to start to make the conveying (running of sheet producing device 1) of material F.In addition, in the present embodiment, be multiplied by predetermined number (being less than the coefficient of 1.0) with light income Lv2 thus calculate threshold value St2.
At this, as shown in Fig. 4 (a) and Fig. 4 (b), the light income Lv2 under the state that accumulative service time reaches the stipulated time is in the trend of step-down compared with the light income Lv1 of original state.This situation is considered to, due to the process of the accumulative service time along with sheet producing device 1, on the permeation member 220 that a part of material F is attached to transfer passage 202 or permeation member 220 sustain damage, thus make the reason that the light transmittance of permeation member 220 declines.Now, although light income drops to light income Lv2 from the light income Lv1 of original state, but because the light income overall when using the presence or absence of threshold value St1 to material F to detect declines, even if therefore when material does not flow through transfer passage 202 (permeation member 220), be also judged as that material flows through transfer passage 202.Therefore, when reaching the stipulated time, again reset threshold value St, specifically accumulative service time of sheet producing device 1, by changing to the threshold value St2 corresponding with light income Lv2 from threshold value St1, thus can correctly implement to judge with presence or absence of material F.
In addition, as the method for setting threshold value St, the accumulative service time except sheet producing device 1 reaches except the situation of stipulated time, and light income Lv when also can not flow through transfer passage 202 according to material F sets threshold value St.Now, such as, often after a predetermined time, just the light income Lv2 that the light accepting part 300b by optical detector 300 accepts is measured, and be multiplied by predetermined number m (being less than the coefficient of 1.0) with measured light income Lv2 thus calculate threshold value St2.Even if adopt in this way, suitable threshold value St that also can be corresponding to the light income L changed with the accumulative service time according to sheet producing device 1 sets.So, when the light income of the light accepting part 300b when the state not flowing through sheet producing device 1 at material F issues light is less, compared with time larger, reduce threshold value St.
And, as the additive method resetting threshold value St, such as, also threshold value St can be set according to the accumulative raw material being fed into sheet producing device 1.Now, such as, stored count is carried out to as by the number entered to the raw-material waste paper Pu of sheet producing device 1.And, when the accumulative number of the waste paper Pu be put into reaches predetermined number, just the light income Lv2 that the light accepting part 300b by optical detector 300 accepts is measured, and be multiplied by predetermined number m (being less than the coefficient of 1.0) with measured light income Lv2 thus calculate threshold value St2.Even if adopt in this way, also can following suitable threshold value St be set, namely with along with sheet producing device 1 use through and the corresponding threshold value St of the light income L changed according to raw-material input amount.
Above, according to above-mentioned embodiment, following effect can be obtained.
Transfer passage 202 has bend 210a, 210b, on the throughput direction of material F, line part 211a, 211b after bend 210a, 210b is provided with optical detector 300.Be transferred material F in transfer passage 202 on the throughput direction of material F, after bend, be transferred to be partial to the mode of the line part 211a side of a side of transfer passage 202 by centrifugal force.Therefore, by optical detector 300, can easily detect the stateless that has of material F.And, according to this detection, can easily manage the conveying capacity of material F.
As shown in Fig. 2 (b), material F is only be present in the amount of the degree in maximum parts in the cross section of transfer passage 202.Therefore, when optical detector is configured on horizontal part 219a, 219b, when the cross section that material F is scattered in transfer passage 202 is overall, the material F possibility do not reached on an optical axis will become large, thus can not detect the situation that there is material.Therefore, need to arrive the mode of the cross section entirety of transfer passage 202 to arrange multiple detector with optical axis.On the other hand, in the above-described embodiment, by utilizing centrifugal force to make material F be partial to, thus less material can be made to concentrate on a place and easily detect the stateless that has of material.In addition, owing to concentrating on a place, therefore without the need to using multiple optical axis S, also without the need to using multiple detector.In the above-described embodiment, can be detected by a detector.In addition, also detector can be set to a few of 2 or 3, and be configured at the part of material deflection.When carrying material F in atmosphere, which will become effective mode.
In addition, above-mentioned embodiment is particularly effective when manufacturing paper thin compared with nonwoven fabric.What the inequality of the amount of the fiber used by paper produced is greater than nonwoven fabric to the disturbance degree of intensity.Therefore, paper is compared with nonwoven fabric, and the more necessary conveying capacity to fiber manages.In addition, because above-mentioned embodiment can also detect the state be not supplied to by the fine thing Pu of solution, therefore also may be used in the manufacture of nonwoven fabric.
When light income Lv1 is changed to light income Lv2 along with service time of sheet producing device 1, again observes and correspond to light income Lv1 and the threshold value St1 that is set, and be reset to the threshold value St2 corresponding with light income Lv2.Thus, due to the accumulative service time along with sheet producing device 1, threshold value St is suitably adjusted, therefore, it is possible to suitably keep the accuracy of detection of optical detector 300, and reduce the error-detecting of the conveying weight of separating fine thing.
The present invention is not limited to above-mentioned embodiment, also can to various change or the improvement in addition of above-mentioned embodiment.Carry out describing to Change Example below.
Change Example 1
Although in the above-described embodiment, the bend 210 of transfer passage 202 have employed the structure bending relative to horizontal part 219a, 219b roughly 90 degree, is not limited to this structure.Fig. 5 is for representing the structure chart of the structure of optical detector involved by Change Example and periphery thereof.As shown in Fig. 5 (a), transfer passage 202a has spiral-shaped.And, there is in the midway of transfer passage 202a the bending bend 291 of more than 180 degree.And, be configured with optical detector 300 in the position corresponding with bend 291.Even if owing to adopting in this way, material also can be partial to the side of bend 291 by air-flow, therefore, it is possible to detect the stateless that has of material.In addition, as shown in Fig. 5 (b), there is in the midway of transfer passage 202b the recess 292 as bend.And, be configured with optical detector 300 in the position corresponding with recess 292.Even if due to the cross section reducing transfer passage by this way, material also can be close to recess 292 by air-flow, therefore, it is possible to detect the stateless that has of material.That is, even if do not utilize centrifugal force, as long as carrying out detecting near material place.
Although Change Example 2 is stated in embodiment, transfer passage 202 is configured with optical detector 300, is not limited to this structure.Such as, also optical detector 300 can be configured on transfer passage 203 or transfer passage 204 etc.In FIG, transfer passage 203 and transfer passage 204 all have bend, if this bend or compared with bend downstream optical detector 300 is set.Such as, by adopting in this way, transfer passage 203 configures optical detector 300, can detect the stateless that has of classification thing, and the conveying weight of classification thing is managed.In addition, transfer passage 204 configures optical detector 300, can having stateless to detect and the conveying weight of screening thing managed screening thing.In addition, even bend the direction that the bends any direction when using the centrifugal force produced by air-flow also no problem.Due to when using gravity, being preferably by the transfer passage of upstream side compared with bend, below vertical direction, not therefore being preferably transfer passage 202, and being preferably transfer passage 203 or transfer passage 204.And, being configured in each optical detector 300 on transfer passage 203 or transfer passage 204 etc., along with the accumulative service time of sheet producing device 1 resets suitable threshold value St.If adopt in this way, then can obtain the effect same with the effect of above-mentioned embodiment.
Change Example 3
Although in the above-described embodiment, as material, the stateless that has of separating in the conveying of fine thing is detected, is not limited thereto.As long as the material of thin slice at least partially, be not then particularly limited.Such as, can fiber be only, can resin be only, also can for comprising the material of other materials.Even if adopt in this way, also can detect the stateless that has of transported substance.
Change Example 4
Although in the above-described embodiment, on the throughput direction of material F, after bend 210, and the position corresponding with line part 211a, the 211b as downstream compared with bend is configured with optical detector 300, is not limited thereto.Such as, also optical detector 300 can be configured in the position corresponding with bend 210.Be included in bend after bend 210 and compared with bend by the transfer passage in the downstream on the throughput direction of material F.Even if owing to adopting in this way, in bend 210, be also close to the bend 210a of a side of bend 210 by air-flow, therefore, it is possible to detect the stateless that has of material F.
Symbol description
1 ... sheet producing device; 10 ... supply unit; 20 ... coarse crushing portion; 30 ... separate fine portion; 40 ... classification portion; 50 ... screening unit; 60 ... additive throw-in part; 70 ... accumulation portion; 100 ... delivery section; 200 ... forming section; 201,202,203,204 ... transfer passage; 202a, 202b ... transfer passage; 210 ... bend; 210a, 210b ... bend; 211a, 211b ... line part; 219a, 219b ... horizontal part; 220 ... light transparent member; 291 ... bend; 292 ... as the recess of bend; 300 ... optical detector; 300a ... illuminating part; 300b ... light accepting part.
Claims (9)
1. a sheet producing device, is characterized in that, possesses:
Transfer passage, it makes flowing through in atmosphere at least partially of the material of thin slice;
Forming section, it uses described material that described thin slice is shaped,
In described sheet producing device,
Described transfer passage has the bend bent by described transfer passage,
On described bend or on the throughput direction of described material compared with described bend downstream transfer passage on, possess the optical detector that described material is detected.
2. sheet producing device as claimed in claim 1, is characterized in that,
The light transmission supplying to send from described optical detector at least partially of described transfer passage.
3., as sheet producing device according to claim 1 or claim 2, it is characterized in that,
Possess:
Separate fine portion, its to described material to carry out solution at least partially fine;
Accumulation portion, it makes described material stacking,
Described transfer passage is positioned at compared with the fine portion of described solution by the downstream of described throughput direction and by the position of the upstream of described throughput direction compared with described accumulation portion.
4. the sheet producing device according to any one of claim 1 to claim 3, is characterized in that,
Described transfer passage has line part in the both sides of described bend, and the open angle of described line part is more than 45 degree less than 150 degree.
5. the sheet producing device according to any one of claim 1 to claim 4, is characterized in that,
Described transfer passage possesses the through portion making light transmission,
Described optical detector has facing to described through portion and the illuminating part of luminescence and the light accepting part accepted through the light of described through portion,
Described sheet producing device has control part, described control part described light accepting part accept wide in predetermined threshold value time, be judged as that described material does not flow through, when the accumulative accumulative service time of described sheet producing device is longer, described threshold value is less.
6. sheet producing device as claimed in claim 5, is characterized in that,
Described control part, when the light income of the described light accepting part of described sheet producing device when the state that described material does not flow through issues light is less, compared with time larger with this light income, and reduces described threshold value.
7., as claim 5 or sheet producing device according to claim 6, it is characterized in that,
Described control part reduces described threshold value when following, that is, the situation of the light income when light income of the described light accepting part of described sheet producing device when the state that described material does not flow through issues light is less than bringing into use of described sheet producing device.
8. a method of producing sheet, is characterized in that,
In the transfer passage with bend, make flowing through in atmosphere at least partially of the material of thin slice,
By be configured on described bend or on the throughput direction of described material compared with described bend downstream transfer passage on optical detector described material is detected.
9. a method of producing sheet, is characterized in that,
Manufacture thin slice by following sheet producing device, described sheet producing device possesses: transfer passage, and it makes flowing through in atmosphere at least partially of the material of described thin slice, and has the through portion making light transmission;
Forming section, it uses described material that described thin slice is shaped,
Optical detector, its have facing to described through portion luminescence illuminating part and accept through the light accepting part of the light of described through portion,
In described method of producing sheet,
Described light accepting part accept wide in predetermined threshold value time, when being judged as that described material does not flow through, when making the accumulative accumulative service time of described sheet producing device longer, described threshold value becomes less.
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| JP2013-270766 | 2013-12-27 | ||
| JP2013270766A JP6252171B2 (en) | 2013-12-27 | 2013-12-27 | Sheet manufacturing apparatus and sheet manufacturing method |
| JP2014-011064 | 2014-01-24 | ||
| JP2014011064A JP6291863B2 (en) | 2014-01-24 | 2014-01-24 | Sheet manufacturing apparatus and sheet manufacturing method |
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| CN104746184A true CN104746184A (en) | 2015-07-01 |
| CN104746184B CN104746184B (en) | 2019-05-28 |
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| CN201410833924.XA Active CN104746184B (en) | 2013-12-27 | 2014-12-26 | Sheet producing device, method of producing sheet |
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| CN (1) | CN104746184B (en) |
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| CN107923094B (en) * | 2015-09-04 | 2021-08-27 | 精工爱普生株式会社 | Sheet manufacturing apparatus and sheet manufacturing method |
| CN107017185A (en) * | 2015-11-19 | 2017-08-04 | 株式会社迪思科 | Processing unit (plant) |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104746184B (en) | 2019-05-28 |
| US9562325B2 (en) | 2017-02-07 |
| US20150184341A1 (en) | 2015-07-02 |
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